1966 Chevrolet K20 Pickup Differentials

Name: Differential Ring Gear Bolt
Brand: Pro-King
SKU: 744A935
Price: 1.89 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1966 Chevrolet K20 Pickup in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 Chevrolet K20 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Differential Oil, and Rear Housing Cover Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like National, Driveworks, and Valvoline. For example, National Differentials start at just $9.99 with an average 4.3 star rating. Driveworks and Valvoline offer similar pricing and quality, backed by strong customer feedback. With over 1,928 reviews and a solid 5 star average, you can shop with confidence knowing other Chevrolet K20 Pickup owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Chevrolet K20 Pickup Differential at Advance Auto Parts is around $168.81, with a range that starts at $2.99 and goes up to $1,141.99. With 174 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like 3 Qt – 80W90 Conventional Gear Oil with Posi Additive, 3 Qt – Penzoil 80W90 Conventional Gear Oil, and Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket start at just $7.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1966 Chevrolet K20 Pickup in peak condition, inside and out.

Looking for the perfect Differential for your 1966 Chevrolet K20 Pickup? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Chevrolet K20 Pickup. Whether you’re driving a 1966 model or another popular model year like 1965, 1967, 1968, 1969, 1970, 1971, 1972, 1973, and 1974, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1966 Chevrolet K20 Pickup Differentials

from

$1.89

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

Meets or exceeds OE specifications

from

$16.99

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.

Product Features:

Switch

from

$46.99

Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush. Side shims included.

Product Features:

USA Standard Gear heavy-duty cross pin shaft
Fits Dana Spicer 44
Works with Spartan Locker or standard open spider gears

from

$9.49

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$148.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

from

$189.99

Set-up carrier bearing (2 bearings, no races) 25590. No return.

Product Features:

Set up bearing kit
Fits Dana Spicer 44
Easily slips on and off carrier journals to allow for easier carrier shim adjustment

from

$108.99

Yukon Minimum Installation Kits are a low-cost solution for ring and pinion gear changes in newer vehicles where the bearings can be reused. Kits include all high-quality components for a smooth differential set up.

Product Features:

Fits 1988 and down GM 10.5″ 14 bolt truck
Included are a pinion seal, crush sleeve , complete shim kit, marking compound and brush.

from

$232.99

Worn or damaged differential end yoke causing driveline Vibrations- This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:

Direct replacement – this differential end yoke matches the fit and construction of the original yoke
Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
Validated fit – this differential end yoke has been tested to confirm accurate fit

from

$92.99

These Yukon replacement diff covers are a direct bolt-on.

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

from

$10.49

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

Meets or exceeds OE specifications

from

$215.99

Yukon Gear and Axle offers a full line of top quality differential tools to save time and money.

Product Features:

For Dana 60, Dana 70, Chrysler 8.75″ w 42 case housing, and GM 10.25″ differentials
For accurate installation of bearing races
Fits HM803110 race

from

$13.99

Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$6.99

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:

Oil baffle for Dana Spicer 44

from

$505.99

Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:

Fits GM 10.5″ GM 14 bolt truck
10.50″ ring gear diameter
30 spline pinion
12 ring gear bolts
3.42 ratio

from

$13.49

Product Features:

Brand may vary by location

from

$177.99

Yukon Gear & Axle manufactures a full line of top-quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers, and other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.

Product Features:

Clutch kit
Fit Dana Spicer 44 and Chrysler 8.75″ Power Lok positraction
Smooth design

from

$7.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$18.49

Product Features:

Brand may vary by location

from

$32.99

Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:

Pinion depth shims for Ford 9.75″

from

$318.99

Landcruiser standard Open side gear Thrust washer.

Product Features:

Spider gear kit
Fits GM 10.5″ 14 bolt truck open differential
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

from

$9.99

5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:

Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
1/2″ head

from

$5.99

Cut to length axle shaft for GM 10.5″ 14 bolt truck. This axle shaft covers lengths from 34.8″ to 38.8″. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a 38 spline upgraded shaft. The factory spindles will need to be machined in order to accept these axles. Please verify bolt pattern on 2011 & later models. This axle has a 3.562″ bolt pattern. Some late model applcaitons use a larger bolt pattern.

Product Features:

Outer oil slinger for Dana Spicer 25, 27, 30, 44 and 50

from

$7.99

Side gear thrust washer
Fits GM 10.5″ 14 bolt truck

from

$12.99

Roll pin for Dana Spicer 30 and Dana Spicer 44
0.235″ diameter

from

$883.99

Yukon Gear & Axle tools are made to the highest industry standard.

Product Features:

Works on popular Ford, GM, Chrysler, and many other housings
For differentials with XHD Clamshells
Can accommodate up to one-ton applications
Comes with a handy bench-top stand
This top-quality differential tool is built to last

from

$659.99

Yukon Gear & Axle spider gear kits utilize the highest quality materials and best production techniques in the industry to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:

Fits GM 10.5″14 bolt truck differential outfitted with Dura Grip positraction
Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
Does not include clutches
Only for Dura Grip LSD

from

$18.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$83.99

Replacement front axle inner seal redi-sleeve for Dana 44 & 8.5″ GM.Yukon Mighty seal.

Product Features:

Axle Redi-sleeve
Fits Dana Spicer 44

Popular 1966 Chevrolet K20 Pickup Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Front Housing Cover Gaskets

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Lock Assemblies

Differential Air System Seal Housings

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

Front Differential Cover Gaskets

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Differential Seals

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Automatic Transmission Differential Carrier Gaskets

Differential Side Gear Thrust Washers

Differential Pinion Bearing Baffles

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Oil Deflectors

Differential Carrier Bolts

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Carrier Bearing Races

Differential Clutch Pack Clips

Differential Lock Thrust Blocks

Most Popular Rear Differential Cover Gaskets for 1966 Chevrolet K20 Pickups

Enhance your 1966 Chevrolet K20 Pickup with one of the 3 Rear Differential Cover Gaskets we have in stock, starting at just $9.99.

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Performance Differential Gasket - Gm 10.5 Axle - 14 Bolt

from

$34.99

Spicer performance differential cover gaskets offer all-makes coverage for street, strip, drag, and off-road applications. These gaskets are reusable offering a clean release during replacement. Built with a mechanically and chemically bonder woven steel.

Product Features:

Made to adhere without messy RTV sealant This saves on install time by eliminating the time needed for RTV cure.
Provides no re-torque design with maximum compression and sealing.
Manufactured with proprietary high-density performance material.
Made in the USA.

from

$12.99

Conversion bearing for small bearing Ford 9″ axle in large bearing housing.

Product Features:

Cover gasket
Fits Dana Spicer 44

from

$9.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Dana engineering-approved for fit, form and function
Meets or exceeds OE specifications.

Best-Selling 1966 Chevrolet K20 Pickup Differential Oil

Upgrade your K20 Pickup with one of our 6 best-selling Differential Oil, earning an average 5 stars rating across 446 reviews.

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from

$12.49

Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:

FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations

from

$57.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

from

$44.99

Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:

Includes three quarts of conventional oil

from

$148.99

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

from

$99.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes three quarts of Redline Shockproof oil

from

$137.99

Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:

Includes four quarts of Redline Shockproof oil

Top-Quality Rear Housing Cover Gaskets for 1966 Chevrolet K20 Pickups

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for Chevrolet K20 Pickups and enjoy top-notch performance from $7.99.

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from

$7.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

Top Picks for 1966 Chevrolet K20 Pickup Differential Covers

Invest in one of our 4 durable Differential Covers for your 1966 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

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from

$67.99

These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.

Product Features:

Fits standard rotation Dana Spicer 44
Chrome

from

$129.99

These Yukon replacement diff covers are a direct bolt-on.

Product Features:

Fits standard rotation Dana Spicer 44
Steel

from

$359.99

These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.

Product Features:

Fits standard rotation Dana Spicer 44
Aluminum girdle cover

from

$271.99

Differential

Top-Rated Differential Bearings for 1966 Chevrolet K20 Pickups

Make a smart move for your 1966 Chevrolet K20 Pickup with products all priced from $10.99 to $32.99.

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from

$10.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$17.49

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$21.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$17.99

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$32.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$19.99

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

Top-Rated Differential Brands For Your 1966 Chevrolet K20 Pickup

When it comes to finding the perfect Differential for your 1966 Chevrolet K20 Pickup, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including Valvoline, National, and Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $6.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1966 Chevrolet K20 Pickup, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1966 Chevrolet K20 Pickup Differentials

If you’re looking for a top-quality Differential for your 1966 Chevrolet K20 Pickup, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1966 Chevrolet K20 Pickup come highly rated, with over 446 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $12.49

(446)

MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

“seems to be ok”

Top-Quality National 1966 Chevrolet K20 Pickup Differentials

For those in search of a high-quality Differential for their 1966 Chevrolet K20 Pickup, Advance Auto Parts offers a great selection of National Differentials. With 3 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $9.99, with an average price of $23.16, giving you a range of options to suit your budget. Backed by over 10 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $41.99

(1)

Shaft Repair Sleeve

“Very delicate piece, but came shipped quite safely and not damaged. High quality.”

from $17.49

(1)

Bearing Race

“I needed them quick an as inexpensive as possible. It was a great buy and experience I would do it again”

from $9.99

(8)

Bearings

“It fits in Ford. I drove only few hundred miles can’t say much about it.”

FAQs for 1966 Chevrolet K20 Pickup Differentials

What are the best-selling Differentials for 1966 Chevrolet K20 Pickups?

Out of 174 Differentials that fit 1966 Chevrolet K20 Pickups, the following parts are the top sellers:

3 Qt – 80W90 Conventional Gear Oil with Posi Additive (11645418) – $57.99
3 Qt – Penzoil 80W90 Conventional Gear Oil (11644279) – $44.99
Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (5185793) – $7.99

What’s the price range for 1966 Chevrolet K20 Pickup Differentials?

The prices of Differentials for the 1966 Chevrolet K20 Pickup range from $2.99 up to $1,141.99 for the most premium parts.

What is the average price of a Differential for a 1966 Chevrolet K20 Pickup?

The average price for Differentials for the 1966 Chevrolet K20 Pickup is $168.81. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Chevrolet K20 Pickup model years?

Yes, we carry Differentials for 13 model years of Chevrolet K20 Pickups between 1960 and 1974. The following model years are the most popular for Differential purchases: 1974, 1973, 1972, 1971, 1970, 1969, 1968, 1967, and 1965.

What are the cheapest Differentials for my 1966 Chevrolet K20 Pickup?

The cheapest 1966 Chevrolet K20 Pickup Differentials we carry are:

Differential Cover Bolt (50333283) – $2.99
Dana 25 / 27 / 30 / 36 / 44 / 53 Pinion Nut Washer replacement (11642796) – $3.99
Dana 44 Pinion Gear Thrust Washer (11642998) – $4.99
Dana 44, Ford 8" / 9", and Model 20 Side Gear Thrust Washer Replacement (11642264) – $5.99
Replacement Outer Oil Slinger For Dana 25, 27, 30, 44 & 50 (11642565) – $5.99

Does Advance Auto Parts sell Differentials for any other 1966 Chevrolet models?

Yes. We stock Differentials for 21 other popular 1966 Chevrolet models. Some of the most popular are 1966 Impala Differentials, 1966 Malibu Differentials, 1966 Corvette Differentials, 1966 Caprice Differentials, and 1966 El Camino Differentials.

What types of Differentials do you sell for my 1966 Chevrolet K20 Pickup?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1966 Chevrolet K20 Pickup:

Can I get help with 1966 Chevrolet K20 Pickup Differential orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Differentials and more.

What is your return policy for Chevrolet K20 Pickup Differentials?

Advance Auto Parts keeps returns simple. For new Chevrolet K20 Pickup Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1966 Chevrolet K20 Pickup Differentials

Pro-King – Differential Ring Gear Bolt (Part No.744A935)

Yukon Gear – Zip Locker Switch (Part No.34015)

USA Standard Gear – Differential Cross Pin (Part No.17017)

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6095-1)

Yukon Gear – Redline Synthetic "Shock Proof" Oil with Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – Set Up Bearing (Part No.56037)

Yukon Gear – Minor Install Kit for ’87 & Down 10.5" GM 14 Bolt Truck Differential (Part No.12045)

Dorman – Differential Pinion Yoke Assembly (Part No.697-551)

Yukon Gear – Steel Cover for GM 10.5" 14 Bolt Truck (Part No.32345)

Pro-King – Differential Pinion Nut (Part No.744A961)

Yukon Gear – Bearing Race Driver for Dana 60/70, Chrysler 8.75, GM 10.25" Differentials (Part No.56011)

Schaeffler – Shaft Seal (Part No.SS2776)

Yukon Gear – Replacement Oil Baffle for Dana 44 (Part No.33000)

Yukon Gear – High Performance Ring & Pinion Gear Set For 10.5" GM 14 Bolt Truck In A 3.42 Ratio (Part No.24466)

Driveworks – Tapered Roller Bearing (Part No.S-HM-803110)

Yukon Gear – Replacement Clutch Set for Dana 44 Power Lok, Smooth (Part No.16152)

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)

Driveworks – Tapered Roller Bearing (Part No.S-2820)

Yukon Gear – Pinion Depth Shims for Ford 9.75" (Part No.55007)

USA Standard Gear – Differential Spider Gear Kits (Part No.39022)

Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Yukon Gear – Replacement Outer Oil Slinger For Dana 25, 27, 30, 44 & 50 (Part No.33011)

Yukon Gear – 14T Side Gear Thrust Washer (Part No.33383)

Yukon Gear – Dana 30 / 44 Roll Pin replacement (Part No.33312)

Yukon Gear – Heavy Duty Carrier Bearing Puller Set (Part No.56072)

Yukon Gear – Dura Grip Spider Gear Set for GM 10.5"/14T Differential (Part No.16167)

Schaeffler – Shaft Seal (Part No.SS2633)

Yukon Gear – Replacement Front Axle Inner Seal Redi-Sleeve For Dana 44 & 8.5" GM (Part No.30219)

Spicer – Performance Differential Gasket – Gm 10.5 Axle – 14 Bolt (Part No.RD51995)

Yukon Gear – Dana 44 Cover Gasket Replacement (Part No.23006)

Victor Reinz – Differential Cover Gasket (Part No.71-14868-00)

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Yukon Gear – Redline Synthetic "Shock Proof" Oil with Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)

Yukon Gear – Replacement Chrome Cover for Dana 44 (Part No.32004)

Yukon Gear – Steel Cover for Dana 44 Standard Rotation (Part No.32319)

Yukon Gear – Aluminum Girdle replacement Cover for Dana 44 TA HD (Part No.32110)

Yukon Gear – Differential (Part No.29101)

Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

National – Bearing Race (Part No.28622)

National – Tapered Roller Bearing Cone (Part No.LM501349)

National – Bearing Race (Part No.382S)

National – Tapered Roller Bearing Cone (Part No.25577)

National – Bearing Race (Part No.25523)